The best episode written by Frank Cottrell Boyce is "Smile", rated 6.4/10 from 51 user votes. It was "directed by Lawrence Gough". "Smile" aired on 4/22/2017 and is rated 0.8 point(s) higher than their second highest rated, "In the Forest of the Night".
The language of the future is emoji! The Doctor takes Bill to a spectacular city on a distant planet - but where are the colonists? A band of 'cute' droids hold the deadly answer.
Director: Lawrence Gough
Writer: Frank Cottrell Boyce
One morning in London, and every city and town in the world, the human race wakes up to the most surprising invasion yet: the trees have moved back in. Everywhere, in every land, a forest has grown overnight and taken back the Earth.
Director: Sheree Folkson
Writer: Frank Cottrell Boyce